Implement your craft projects with this 10-pack of Pacon UCreate 20" x 30" foam boards. An extruded polystyrene foam laminated between two sheets of paper forms a rigid surface to support various types of media, while the 3\/16-inch thickness delivers a sturdy frame for your paintings or photos. These Pacon UCreate 20" x 30" foam boards boast an acid-free construction to ensure lasting displays.